decrepit

/di-ˈkre-pət/

Middle English, from Latin decrepitus

adjective

  1. wasted and weakened by or as if by the infirmities of old age

  2. impaired by use or wear : worn-out

  3. fallen into ruin or disrepair

a decrepit old man

weak feeble frail fragile infirm decrepit mean not strong enough to endure strain, pressure, or strenuous effort. weak applies to deficiency or inferiority in strength or power of any sort. feeble suggests extreme weakness inviting pity or contempt.